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Indian Institute of Technology Bhubaneswar
Indian Institute of Technology Bhubaneswar

Dr. Nirupam Karmakar Assistant Professor
School of Earth, Ocean and Climate Sciences

Research Interests

Indian monsoon variability; Tropical climate; Climate modeling; Large-scale circulation; Intraseasosonal oscillations; Extreme events; Climate change impacts

Contact Details

  • SEOCS 120
  • nirupam@iitbbs.ac.in, nirupam.ju@gmail.com

Other Profile Link(s)

Education

 Degree Discipline Year School
  PhD Atmospheric and Oceanic Sciences 2017 Indian Institute of Science Bangalore
  MSc Mathematics 2010 Indian Institute of Technology Kanpur
  BSc Mathematics 2008 Jadavpur University
 

Biosketch

My primary research is aimed towards understanding tropical climate and its variability, with a particular focus on the Indian monsoon. Despite the fact that billions of people are dependent upon the vagaries of monsoon over the Indian region, there is no established theory that explains the observed variability in monsoon. I try to understand the variability in different timescales, intraseasonal to multidecadal, while combining theories, observational studies and numerical simulations. 

Teaching

Mathematical and Statistical Methods in Earth System Science
Mathematical and Statistical Methods in Climate Science
Modeling of the Synamical Processes in Ocean and Atmosphere
Climate Variability and Global Warming
Planetary and Marine Boundary Layer 
Air-Sea Interactions
 
Modeling and Visualizations Laboratory
Numerical Products and Diagnostics Laboratory
Application of Mathematics and Statistics in Climate Science Laboratory
 

Projects

  1. Startup Research Grant (SRG), Science and Education Research Board (SERB), Govt of India (PI)
    Project Title: Moisture and moist static energy budgets of the Indian summer monsoonintraseasonal oscillations and performance of a global climate model
    Duration: Dec 2023 to Dec 2025
     
  2. IIT Institute funded SEED grant (PI)
    Project Title: Development of a diagnostic framework for understanding the thermodynamics of the Indian summer monsoon intraseasonal oscillations
    Duration: Feb 2024 to Feb 2026

Recent Publications (International Journals)

1Karmakar, N., Chakraborty, A. and Nanjundiah, R. S. (2015) Decreasing Intensity of Monsoon Low-Frequency Intraseasonal Variability over India. Environmental Research Letters, 10, 054018. doi:10.1088/1748-9326/10/5/054018.
2Karmakar, N., Chakraborty, A. and Nanjundiah, R. S. (2017) Space-Time Evolution of the Low- and High-Frequency Intraseasonal Modes of the Indian Summer Monsoon, Monthly Weather Review, 145, 413-435. doi:10.1175/MWR-D-16-0075.1.
3Karmakar, N., Chakraborty, A. and Nanjundiah, R. S. (2017) Increased sporadic extremes decrease the intraseasonal variability in the Indian summer monsoon rainfall, Scientific Reports, 7, 7824. doi:10.1038/s41598-017-07529-6.
4Karmakar, N., Krishnamurti, T. N. (2019) Characteristics of Northward Propagating Intraseasonal Oscillations in the Indian Summer Monsoon, Climate Dynamics, 52(3-4), 1903-1916. doi:10.1007/s00382-018-4268-2.
5Agrawal, S., Chakraborty, A., Karmakar, N., Moulds, S., Mijic, A. and Buytaert, W. (2019)Effects of winter and summer-time irrigation over Gangetic Plain on the mean and intra-seasonal variability of Indian summer monsoon, Climate Dynamics, 53, 3147-3166. doi:10.1007/s00382-019-04691-7.
6Karmakar, N., Misra, V. (2019) The relation of intraseasonal variations with local onset and demise of the Indian summer monsoon, Journal of Geophysical Research-Atmospheres, 124(5), 2483-2506. doi:10.1029/2018JD029642.
7Karmakar, N., Chakraborty, A. and Nanjundiah, R. S. (2020) Influence of global sea surface temperature on ultra-low frequency variability in the Indian summer monsoon rainfall, Quarterly Journal of the Royal Meteorological Society, 146, 904-921. doi:10.1002/qj.3715
8Karmakar, N., Misra, V. (2020) Differences in northward propagation of convection over the Arabian Sea and Bay of Bengal during boreal summer, Journal of Geophysical Research-Atmospheres, 125, e2019JD031648. doi:10.1029/2019JD031648
9Karmakar, N., Misra, V. (2020) The fidelity of a regional coupled model in capturing the relationship between intraseasonal variability and the onset/demise of the Indian summer monsoon, Climate Dynamics, 54, 4693-4710. https://doi.org/10.1007/s00382-020-05252-z
10Karmakar, N., Boos, W. R. and Misra, V. (2021) Influence of intraseasonal variability on the development of monsoon depressions, Geophysical Research Letters, 48, e2020GL090425. doi:10.1029/2020GL090425
11Uehling, J., Misra, V., Bhardwaj, A., and Karmakar, N. (2021) Characterizing the Local Variations of the Northern Australian Rainy Season, Monthly Weather Review, 149(12), 3995-4004. doi:10.1175/MWR- D-21-0093.1
12Karmakar, N., Joseph, S. and Sahai, A. K. (2022) Northward propagation of convection over Arabian Sea and Bay of Bengal: A perspective from vorticity equation, Climate Dynamics, doi:10.1007/s00382-022-06248-7.
13Karmakar, N., Joseph, S. and Sahai, A. K., Kaur, M., Phani, R., Mandal, R. and Dey, A. (2023) Northward propagation of convection over the Indian region in multi-physics multi-model ensemble, Quarterly Journal of Royal Meteorological Society, 155(750), 231-246. doi:10.1002/qj.4404.
14Mandal, R., Joseph, S., Sahai, A. K., Dey, A., Phani, R., Pattanaik, D. R., Kaur, M., and Karmakar, N. (2023) Diagnostics and real-time extended range prediction of cold waves over India, Climate Dynamics, doi:10.1007/s00382-023-06666-1
15Jayasankar, C. B., Misra, V. and Karmakar, N. (2023) A Comparative Study Between Regional Atmospheric Model Simulations Coupled and Uncoupled to a Regional Ocean Model of the Indian Summer Monsoon, Earth and Space Science, 10, e2022EA002733. doi:10.1029/2022EA002733.
 

Academic Honors & Awards

  • Indian National Science Academy (INSA) Medal for Young Scientists, 2022.
  • Associate, Indian Academy of Sciences, Bengaluru.
  • Roddam Family Medal for best PhD thesis from Indian Institute of Science, Bangalore.
  • Best Student Posters Award in the 29th Conference on Climate Variability and Change in American Meteorological Society 97th Annual Meeting, Seattle, USA, 22–26 January 2017.
  • Jeremy Grantham Fellowship from Divecha Centre for Climate Change, Indian Institute of Science, Bangalore.
  • Merit-cum-Means Scholarship from Indian Institute of Technology, Kanpur.
 

Research Scholar

1. Pritee Priyanka Mohapatra
2. Abheendra Bandary (co-supervise with Dr. Kiranmayi L)
3. Arpan Bhattacharjee (co-supervise with Dr. Sourav Sil)
 

Professional Experience

April 2017 to October 2020 Postdoctoral Research Scholar, Florida State University, USA-------> October 2020 to February 2023 Scientist-D, Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, India-------> February 2023 to Present Assistant Professor, IIT Bhubaneswar, India  

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